Saw.



PATBNTLD DLG. 4', 1906,

T. L. WALLACE.

. SAW. APPLIUATION FILED JUNI: 24, 1905*. LLNEWED MAY 25, 190s. y

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'produce 'UNITED STATES PATENT OFFICE.

THOMAS L. l/VALLACE, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO E. C. ATKINS& COMPANY, OF INDIANAPOLIS, INDIANA, A CORPORATION OF INDIANA.

SAW.

Specification of Letters Patent.

Patented Dec. 4, 1906.

T0 all whom, it mfr/,y concern:

. Be it known that I, THOMAS L. WALLACE, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented certain new and useful Improvements in Saws, of which thefollowing is a specification.

As ordinarily constructed a long saw (as distinguished from a circularsaw) consists mainly of a continuous blade formed from a single piece ofmetal. Such saw-blades are of considerable length. Crosscut-saws, asthey are generally known, have blades oi' from four feet to seven feetin length. A crosscut or other long-bladed saw is frequently highlydesirable as a part oi an outfit in which it is impracticable to pack asaw having a blade of the ordinary length. Hunters, trappers, campers,and small military parties (such as scouts, advance guards, and thelike) have a special need for an equipment capable of being carried inthe smallest possible space. As is well known, such equipment is usuallyin the form of packs or knapsacks and the like.

The object oi my invention, therefore, is to a saw capable of beingpacked in small compass for transportation 3 and said invention consistsin a saw the blade of which is formed in several sections, `which-sections are capable oi' being united, and thus brought into conditionfor use, and which are also capable of being easily disassembled andpacked together in a small compact package suitable to be put in aknapsack or hunters or soldiers pack. l

The accompanying drawings illustrate a crosscut-saw embodying my saidinvention.

Figure 1 is a side elevation of such a saw, Fig. 2, a fragmentary sideelevation, on an enlarged scale, showing the adjacent ends of twosections united together; Figs. 3, 4, and 5, transverse sectional viewsas seen when looking in the direction indicated by the arrows from thedotted lines 3 3, 4 4, and 5 5, respectively, in` Fig. 2; Figs. 6 and 7,detail horizontal sectional views as seen when looking downwardly fromthe dotted lines 6 6 and 7 7, respectively, in Fig. 2, Fig. 8, a viewshowing the same parts as are shown in Fig. 2, but in their disassembledrelation just before being united; and Fig. 9, a transverse sectionalview as seen when looking in the direction indicated by the arrows fromthe dotted line 9 9 in Fig. 3. l

The saw-blade of my improved saw, as is best shown in Fig. 1, iscomposed of several short sections. Each section is provided withinterlocking projecting portions (hereinater called Hiingers) at theends. The saw shown is oi the crosscut variety and is composed of sixsections 21, 22, 23, 24, 25, and 26 and the usual two handles 27 and 28.The joints by means of which the several sections are united are allalike, and therefore in the following description I shall coniine myselfto a description oi one of these joints and have selected the middlejoint, which unites the two sections numbered 23 and 24. The

Asection 23, as best shown in Figs. 2 and 8,

has iingers 31, 32, and 33, the latter of which carries or embodies astud 34. As shown in the cross-sectional views, certain of these figuresare V-shaped' or V-grooved at the edges, so th'at they may the betterengage with the corresponding edges on the fingers of the adjacentsection, which are formed to match therewith. The section 24 has twofingers 41 and 42. The finger 42 develops into a hook 43, which passesup around and engages with' the stud 34 on the nger 33.

.At the point where these two ngers 33 and 42 overlap they are reduced,respectively, to half the aggregate thickness of the sawblade. The stud34 is preferably undercut somewhat or circumferentially grooved, and theedge oi' the hook 43 is correspondingly formed, and by means of thisformation said two partsare more securely united, as will be readilyunderstood.

I/Vhen the parts are assembled, as best shown in Fig. 2, they aresecurely locked together by means of a rotary locking-plug 51, which isinserted in Aa circular opening formed in the adjacent edges of theiingers 31 and 41. In order to prevent this plug from easily droppingout and thus becoming lost, I prefer to make the' greater portion ofsaid circular opening in one of the fingers, and have shown the iinger31 as containing the greater portion of said opening. The plug 51contains a V-groove around its edge,-and the adjacent edges of theopening containing it are correspondingly V-shaped. One side of the plug51 is cut away, and when it is turned into the position shown in Fig. 8it offers no obstruction to the entrance of the finger 41 into the spacebetween the fingers 31 and 32. When, however, it is turned to theposition shown in Fig. 2, it locks the Jfingers 31 and 41 firmlytogether and prevents the saw-sections bearing said fingers from comingapart. When the sections of the saw are about to be assembled, they arefirst brought into substantially the relation indicated in Fig. 8. Theyare then brought together, so that the hook 43 is in engagement'with thestud 34, after which the sections are swung around until they occupy therelation shown in Figs. 2 and 1. While being assembled the locking-plug51 is positioned as shown inl Fig. 8. After the parts are broughttogether said rotary plug is given a half-revolution by a suitablewrench or key, as 61, (see Fig. 9,) and this firmly locks the partstogether and holds them in yassembled relation in a saw-blade, as shown.The upper and lower ,edges of the several fingers are curved, the centerfrom. which the curves are struck being the center of the stud 34, andthe parts in being assembled (after the hook 43 is engaged with the stud34) swing about said center as an axis.

By means of my invention I have produced a saw composed of sectionswhich are capable of being easily and quickly assem# bled anddisassembled and which when disassembled are capable of being packed insmall compass so as to be easily and conveniently transported from placeto place.

Having thus fully described my said invention, what I claim as new, anddesire to secure by Letters Patent, isv 1. As a new article ofmanufacture,asaw composed of a plurality of sections, said sections eachhaving projecting fingers on their ends and the adjacent sections havingrecesses into which said fingers enter, and a fastening device wherebywhen the sections are assembled they may be locked together, said fingerand recess connections being arranged successively in the line of cut ofthe saw.

2. In a saw, the combination ofaplurality of sections having matchingand interlocking projecting fingers on their ends, and 'a locking devicefor securing the sections together, said matching and interlockingprojecting fingers being arranged successively in the line of cut ofthesaw.

3. In a saw, the combination of a plurality of sections havinginterlocking projecting ngers on their adjacent ends, one such adjacentend having a stud and the other a corresponding hook, and a lockingdevice adapted to secure two adjacent projecting members together.

4.'v In ya saw, the combination of a plurality of sections havinginterlocking projecting fingers, an opening formed in two adjacentprojecting fingers, one on each section, a

greater portion of said opening being in the projecting finger on onesection thanin that on the other, a rotating locking device mounted insaid opening and having one side flattened, said rotating locking devicebeing thus adapted to lock the parts together when in one position-andto permit them to be assembled and disassembled when in anotherposition.

5. A saw composed of a plurality of sections, said sections beingprovided at their adjacent ends with a plurality of projecting fingers,one finger on one section embodying a hook, the fitting-surface of theseveral iinT gers on the respective sections being curved, the severalcurves being struck from a common center, and a suitable locking deviceintersectingvthe adjacent surfaces of two ofthe fingers.

6. In a saw, the combination of a plurality of sections havinginterlocking projecting iingers, one finger on one section having a studand the corresponding finger on the other section having a hook adaptedto engage therewith, the several fingers being curved, and the curvesbeing struck from the center of the stud.

7. In a saw, the combination of a plurality of sections havinginterlocking projecting iingers, one finger on one section having a studand the corresponding iinger on thereother section having `a hookadapted to engage therewith, a circular opening formed in the adjacentedges of two of the fingers, a greater portion of said opening being inone finger than in the other, a rotatable locking device mounted in saidopening having one side flattened, and means for rotating said lockingdevice.

8. In a saw, the combination of a plurality of sections havinginterlocking fingers on their ends, one finger on one section having astud, which stud is undercut to form an annular groove therearound, andthe corresponding finger on the other section having a hook formed tofit into saidgroove and thus securely engage with said stud, said twoiingers at the connecting-point being each substantially half theaggregate thickness of the saw.

9. As a new article of manufacture, a sawblade composed solely of aplurality of sections to be connected successively end to end, saidsections having interengaging portions lying in the same plane, and amovablekey carried by one section for projection into an adjacentsection.

10. As a new article of manufacture, a sawbla'de composed solely of aplurality of sections to be connected successively end to end, saidsections having interengaging portions lying in the same plane, and amovable key for connecting the two members.

1 1. As a new article of manufacture,-a sawblade composed solely of aplurality of sections to be connected successively end to end,

IOO

said sections having nterengagjng' portions lying in the same plane andassocable endwise and formed to prevent displacement transversely of theplane of the saw, and a movable key movahly mounted in one section andprojectable into the other section.

12. As a new article of manufacture, a sawblade composed solely of aplurality of sections to he connected successively end to end,

said sections having nterengagng portions lying' m the same plane andassoclable end- 1 wise and formed to prevent displacement transverselyof the plane of the saw, and a movable key for connecting the twomembers.

In witness whereof I have hereunto set my hand and seal, atIndianapolis, Indiana, this 21st day of June, A. D. 1905.

THOMAS L. WALLACE.

Vtnesses .CHESTER BRADFORD, JAMES A. WALSH.

